The boat’s own speed is 27 1/3 km / h, and the current speed is 1 5/9 km / h. How far will
| February 18, 2021 | education
The boat’s own speed is 27 1/3 km / h, and the current speed is 1 5/9 km / h. How far will the boat travel in 3 hours upstream of the river?
The speed of the boat is 27 1/3 km / h.
The speed of the current is 1 5/9 km / h.
How far will it travel in 3 hours upstream?
27 1/3 km / h = 82/3 km / h, 1 5/9 km / h = 14/9 km / h.
1) 82 / 3-14 / 9 = 246 / 9-14 / 9 = 232/9 (km / h) speed upstream.
2) 232/9 * 3 = 696/9 = 232/3 = 77 1/3 (km) will pass in 3 hours.
In 3 hours, 77 1/3 km will pass.
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